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| author | Will Schmidt <will_schmidt@vnet.ibm.com> | 2007-06-29 22:49:50 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-06-30 06:27:00 +0200 |
| commit | fde937d826e43c9fe7fecc98b6f3da7188e76930 (patch) | |
| tree | 6e52722aba4e7fd4a7effecc8a1578d37930cae0 /arch/powerpc | |
| parent | Merge branch 'for_linus' of master.kernel.org:/pub/scm/linux/kernel/git/galak... (diff) | |
| download | linux-fde937d826e43c9fe7fecc98b6f3da7188e76930.tar.xz linux-fde937d826e43c9fe7fecc98b6f3da7188e76930.zip | |
Fix VDSO gettimeofday() when called with NULL struct timeval.
The vdso64 portion of patch 74609f4536f2b8fd6a48381bbbe3cd37da20a527 for
fixing problems with NULL gettimeofday input mistakenly checks for a
null tz field twice, when it should be checking for null tz once, and
null tv once; by way of a r10/r11 typo.
Any application calling gettimeofday(&tv,NULL) will "fail".
This corrects that typo, and makes my G5 happy.
Tested on G5.
Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Cc: Tony Breeds <tony@bakeyournoodle.com>
Forwarded-by: Ben Herrenschmidt <benh@kernel.crashing.org>
[ Ben says: "I checked the 32 bits part of the change is correct. You
can probably blame me for originally writing the 2 versions with
inversed usage of r10 and r11, thus confusing Tony :-)"
Ben duly blamed. - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/vdso64/gettimeofday.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S index 2d7a5104c666..c6401f9e37f1 100644 --- a/arch/powerpc/kernel/vdso64/gettimeofday.S +++ b/arch/powerpc/kernel/vdso64/gettimeofday.S @@ -31,7 +31,7 @@ V_FUNCTION_BEGIN(__kernel_gettimeofday) mr r11,r3 /* r11 holds tv */ mr r10,r4 /* r10 holds tz */ bl V_LOCAL_FUNC(__get_datapage) /* get data page */ - cmpldi r10,0 /* check if tv is NULL */ + cmpldi r11,0 /* check if tv is NULL */ beq 2f bl V_LOCAL_FUNC(__do_get_xsec) /* get xsec from tb & kernel */ lis r7,15 /* r7 = 1000000 = USEC_PER_SEC */ |