On 03.02.2012 19:26, Grégoire Sutre wrote:
The compiler complains about `totsize' being possibly uninitialized
in grub-core/disk/diskfilter.c, function grub_diskfilter_make_raid().
I get this error with gcc 4.5.3 on NetBSD, and also with gcc 4.6.2 on
Debian GNU/Linux.
I'm not familiar with that code. The attached patch fixes this by
returning NULL when the argument `level' has an unexpected value.
I've looked at other code and seen that return NULL will result in the
skipping of those devices altogether, exactly what we want. So I think
it's a reasonable behaviour for this function. So go ahead
Grégoire
gcc -DHAVE_CONFIG_H -I. -I.. -Wall -W -I../include -I../include
-DGRUB_MACHINE_PCBIOS=1 -DGRUB_MACHINE=I386_PC
-DGRUB_TARGET_CPU_I386=1 -m32 -DGRUB_FILE=\"disk/diskfilter.c\" -I.
-I. -I.. -I.. -I../include -I../include -Os -Wall -W -Wshadow
-Wpointer-arith -Wmissing-prototypes -Wundef -Wstrict-prototypes -g
-falign-jumps=1 -falign-loops=1 -falign-functions=1 -mno-mmx -mno-sse
-mno-sse2 -mno-3dnow -fno-dwarf2-cfi-asm
-fno-asynchronous-unwind-tables -m32 -fno-stack-protector
-mno-stack-arg-probe -Werror -mrtd -mregparm=3 -ffreestanding
-MT disk/diskfilter_module-diskfilter.o -MD -MP -MF
disk/.deps-core/diskfilter_module-diskfilter.Tpo -c -o
disk/diskfilter_module-diskfilter.o `test -f 'disk/diskfilter.c' ||
echo './'`disk/diskfilter.c
cc1: warnings being treated as errors
disk/diskfilter.c: In function 'grub_diskfilter_make_raid':
disk/diskfilter.c:813:17: error: 'totsize' may be used uninitialized
in this function
gmake[3]: *** [disk/diskfilter_module-diskfilter.o] Error 1
gmake[3]: Leaving directory `/tmp/grub/grub-core'
gmake[2]: *** [all] Error 2
gmake[2]: Leaving directory `/tmp/grub/grub-core'
gmake[1]: *** [all-recursive] Error 1
gmake[1]: Leaving directory `/tmp/grub'
gmake: *** [all] Error 2
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--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko
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