diff --git a/drivers/spi/amba-pl022.c b/drivers/spi/amba-pl022.c
index 9aeb681..e9aeee1 100644
--- a/drivers/spi/amba-pl022.c
+++ b/drivers/spi/amba-pl022.c
@@ -44,6 +44,7 @@
 #include <linux/amba/bus.h>
 #include <linux/amba/pl022.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 /*
  * This macro is used to define some register default values.
diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index d21c24e..c4e0442 100644
--- a/drivers/spi/atmel_spi.c
+++ b/drivers/spi/atmel_spi.c
@@ -18,6 +18,7 @@
 #include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/spi/spi.h>
+#include <linux/slab.h>
 
 #include <asm/io.h>
 #include <mach/board.h>
diff --git a/drivers/spi/au1550_spi.c b/drivers/spi/au1550_spi.c
index ba8ac4f..3c9ade6 100644
--- a/drivers/spi/au1550_spi.c
+++ b/drivers/spi/au1550_spi.c
@@ -23,6 +23,7 @@
 
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/device.h>
 #include <linux/platform_device.h>
diff --git a/drivers/spi/davinci_spi.c b/drivers/spi/davinci_spi.c
index 225ab60..95afb6b7 100644
--- a/drivers/spi/davinci_spi.c
+++ b/drivers/spi/davinci_spi.c
@@ -27,6 +27,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
+#include <linux/slab.h>
 
 #include <mach/spi.h>
 #include <mach/edma.h>
diff --git a/drivers/spi/dw_spi.c b/drivers/spi/dw_spi.c
index 8ed38f1..d256cb0 100644
--- a/drivers/spi/dw_spi.c
+++ b/drivers/spi/dw_spi.c
@@ -21,6 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/highmem.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 
 #include <linux/spi/dw_spi.h>
 #include <linux/spi/spi.h>
diff --git a/drivers/spi/dw_spi_mmio.c b/drivers/spi/dw_spi_mmio.c
index e35b45a..db35bd9 100644
--- a/drivers/spi/dw_spi_mmio.c
+++ b/drivers/spi/dw_spi_mmio.c
@@ -11,6 +11,7 @@
 #include <linux/clk.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 #include <linux/spi/dw_spi.h>
 #include <linux/spi/spi.h>
 
diff --git a/drivers/spi/dw_spi_pci.c b/drivers/spi/dw_spi_pci.c
index 1f0735f..1f52755 100644
--- a/drivers/spi/dw_spi_pci.c
+++ b/drivers/spi/dw_spi_pci.c
@@ -19,6 +19,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
 #include <linux/spi/dw_spi.h>
 #include <linux/spi/spi.h>
 
diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c
index 0474786..77d4cc8 100644
--- a/drivers/spi/mpc52xx_psc_spi.c
+++ b/drivers/spi/mpc52xx_psc_spi.c
@@ -24,6 +24,7 @@
 #include <linux/delay.h>
 #include <linux/spi/spi.h>
 #include <linux/fsl_devices.h>
+#include <linux/slab.h>
 
 #include <asm/mpc52xx.h>
 #include <asm/mpc52xx_psc.h>
diff --git a/drivers/spi/mpc52xx_spi.c b/drivers/spi/mpc52xx_spi.c
index 6eab465..cd68f1c 100644
--- a/drivers/spi/mpc52xx_spi.c
+++ b/drivers/spi/mpc52xx_spi.c
@@ -21,6 +21,7 @@
 #include <linux/of_spi.h>
 #include <linux/io.h>
 #include <linux/of_gpio.h>
+#include <linux/slab.h>
 #include <asm/time.h>
 #include <asm/mpc52xx.h>
 
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index 4dd786b..d8356af 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -32,6 +32,7 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 #include <linux/spi/spi.h>
 
diff --git a/drivers/spi/omap_spi_100k.c b/drivers/spi/omap_spi_100k.c
index 5355d90..24668b3 100644
--- a/drivers/spi/omap_spi_100k.c
+++ b/drivers/spi/omap_spi_100k.c
@@ -33,6 +33,7 @@
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
+#include <linux/slab.h>
 
 #include <linux/spi/spi.h>
 
diff --git a/drivers/spi/omap_uwire.c b/drivers/spi/omap_uwire.c
index 6c3a855..160d326 100644
--- a/drivers/spi/omap_uwire.c
+++ b/drivers/spi/omap_uwire.c
@@ -41,6 +41,7 @@
 #include <linux/interrupt.h>
 #include <linux/err.h>
 #include <linux/clk.h>
+#include <linux/slab.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index c2f707e..3682835 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -29,6 +29,7 @@
 #include <linux/delay.h>
 #include <linux/clk.h>
 #include <linux/gpio.h>
+#include <linux/slab.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index b76f246..9ffb0fd 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -23,6 +23,7 @@
 #include <linux/init.h>
 #include <linux/cache.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 #include <linux/mod_devicetable.h>
 #include <linux/spi/spi.h>
 
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 1d41058..10a6dc3 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/device.h>
+#include <linux/slab.h>
 #include <linux/io.h>
 #include <linux/ioport.h>
 #include <linux/irq.h>
diff --git a/drivers/spi/spi_bitbang.c b/drivers/spi/spi_bitbang.c
index f1db395..5265330a 100644
--- a/drivers/spi/spi_bitbang.c
+++ b/drivers/spi/spi_bitbang.c
@@ -23,6 +23,7 @@
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c
index 0ddbbe4..7972e90 100644
--- a/drivers/spi/spi_imx.c
+++ b/drivers/spi/spi_imx.c
@@ -30,6 +30,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
 #include <linux/types.h>
diff --git a/drivers/spi/spi_mpc8xxx.c b/drivers/spi/spi_mpc8xxx.c
index 4f0cc9d..14d0523 100644
--- a/drivers/spi/spi_mpc8xxx.c
+++ b/drivers/spi/spi_mpc8xxx.c
@@ -39,6 +39,7 @@
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
 #include <linux/of_spi.h>
+#include <linux/slab.h>
 
 #include <sysdev/fsl_soc.h>
 #include <asm/cpm.h>
diff --git a/drivers/spi/spi_nuc900.c b/drivers/spi/spi_nuc900.c
index b319f9b..dff63be 100644
--- a/drivers/spi/spi_nuc900.c
+++ b/drivers/spi/spi_nuc900.c
@@ -21,6 +21,7 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
diff --git a/drivers/spi/spi_ppc4xx.c b/drivers/spi/spi_ppc4xx.c
index 6d8d402..7cb5ff3 100644
--- a/drivers/spi/spi_ppc4xx.c
+++ b/drivers/spi/spi_ppc4xx.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/wait.h>
 #include <linux/of_platform.h>
diff --git a/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c
index 1fabede..151a95e 100644
--- a/drivers/spi/spi_s3c24xx.c
+++ b/drivers/spi/spi_s3c24xx.c
@@ -21,6 +21,7 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
diff --git a/drivers/spi/tle62x0.c b/drivers/spi/tle62x0.c
index bf9540f..a393895 100644
--- a/drivers/spi/tle62x0.c
+++ b/drivers/spi/tle62x0.c
@@ -11,6 +11,7 @@
 
 #include <linux/device.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/tle62x0.h>
diff --git a/drivers/spi/xilinx_spi_of.c b/drivers/spi/xilinx_spi_of.c
index ed34a8d..748d33a 100644
--- a/drivers/spi/xilinx_spi_of.c
+++ b/drivers/spi/xilinx_spi_of.c
@@ -27,6 +27,7 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 #include <linux/of_platform.h>
 #include <linux/of_device.h>