tree c68759e4765673eb1f28e220edea40d84d9ff744
parent d84970bbaf9a09b3fc60c18ee6d59bc9cb4c3b8a
author Grant Likely <grant.likely@secretlab.ca> 1338506768 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1338511767 -0700

vsprintf: correctly handle width when '#' flag used in %#p format

The '%p' output of the kernel's vsprintf() uses spec.field_width to
determine how many digits to output based on 2 * sizeof(void*) so that all
digits of a pointer are shown.  ie.  a pointer will be output as
"001A2B3C" instead of "1A2B3C".  However, if the '#' flag is used in the
format (%#p), then the code doesn't take into account the width of the
'0x' prefix and will end up outputing "0x1A2B3C" instead of "0x001A2B3C".

This patch reworks the "pointer()" format hook to include 2 characters for
the '0x' prefix if the '#' flag is included.

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>