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>
This commit is contained in:
Родитель
cc7594e420
Коммит
f2e576b814
|
@ -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;
|
||||
}
|
||||
}
|
||||
|
|
Загрузка…
Ссылка в новой задаче