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authorAndrew Morton <akpm@linux-foundation.org>2008-03-18 18:54:45 -0700
committerIngo Molnar <mingo@elte.hu>2008-04-17 17:41:21 +0200
commitf2e576b8141ec1cf2669ff7bbc92f0a9c147f34f (patch)
treec5c061b030a3fb903844705ff45b4ca29b8efa51 /arch/x86
parentcc7594e420283cf6070538655f1a4fbebb3fb853 (diff)
i386: arch/x86/math-emu/reg_ld_str.c: fix warning
arch/x86/math-emu/reg_ld_str.c:380: warning: 'l[0]' may be used uninitialized in this function arch/x86/math-emu/reg_ld_str.c:380: warning: 'l[1]' may be used uninitialized in this function I can't actually spot the bug here. There's one obvious place, but fixing that didn't shut the warning up. Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/math-emu/reg_ld_str.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/x86/math-emu/reg_ld_str.c b/arch/x86/math-emu/reg_ld_str.c
index 799d4af5be6..02af772a24d 100644
--- a/arch/x86/math-emu/reg_ld_str.c
+++ b/arch/x86/math-emu/reg_ld_str.c
@@ -383,15 +383,15 @@ int FPU_store_double(FPU_REG *st0_ptr, u_char st0_tag, double __user *dfloat)
int exp;
FPU_REG tmp;
+ l[0] = 0;
+ l[1] = 0;
if (st0_tag == TAG_Valid) {
reg_copy(st0_ptr, &tmp);
exp = exponent(&tmp);
if (exp < DOUBLE_Emin) { /* It may be a denormal */
addexponent(&tmp, -DOUBLE_Emin + 52); /* largest exp to be 51 */
-
- denormal_arg:
-
+denormal_arg:
if ((precision_loss = FPU_round_to_int(&tmp, st0_tag))) {
#ifdef PECULIAR_486
/* Did it round to a non-denormal ? */
@@ -477,8 +477,7 @@ int FPU_store_double(FPU_REG *st0_ptr, u_char st0_tag, double __user *dfloat)
/* This is a special case: see sec 16.2.5.1 of the 80486 book */
/* Overflow to infinity */
- l[0] = 0x00000000; /* Set to */
- l[1] = 0x7ff00000; /* + INF */
+ l[1] = 0x7ff00000; /* Set to + INF */
} else {
if (precision_loss) {
if (increment)
@@ -492,8 +491,6 @@ int FPU_store_double(FPU_REG *st0_ptr, u_char st0_tag, double __user *dfloat)
}
} else if (st0_tag == TAG_Zero) {
/* Number is zero */
- l[0] = 0;
- l[1] = 0;
} else if (st0_tag == TAG_Special) {
st0_tag = FPU_Special(st0_ptr);
if (st0_tag == TW_Denormal) {
@@ -508,7 +505,6 @@ int FPU_store_double(FPU_REG *st0_ptr, u_char st0_tag, double __user *dfloat)
reg_copy(st0_ptr, &tmp);
goto denormal_arg;
} else if (st0_tag == TW_Infinity) {
- l[0] = 0;
l[1] = 0x7ff00000;
} else if (st0_tag == TW_NaN) {
/* Is it really a NaN ? */
@@ -532,7 +528,6 @@ int FPU_store_double(FPU_REG *st0_ptr, u_char st0_tag, double __user *dfloat)
EXCEPTION(EX_Invalid);
if (!(control_word & CW_Invalid))
return 0;
- l[0] = 0;
l[1] = 0xfff80000;
}
}