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drivers/*: mark variables with uninitialized_var()

Browse source 
Mark variables in drivers/* with uninitialized_var() if such a warning
appears, and analysis proves that the var is initialized properly on all
paths it is used.

Signed-off-by: Jeff Garzik <[email protected]>
This commit is contained in:
Jeff Garzik 2007-07-17 05:39:58 -04:00
commit a6343afb6e
8 changed files with 25 additions and 11 deletions
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9
drivers/video/matrox/matroxfb_maven.c
View file

@ -273,8 +273,11 @@ static int matroxfb_PLL_mavenclock(const struct matrox_pll_features2* pll,
}
}
}
/* if h2/post/in/feed have not been assigned, return zero (error) */
if (besth2 < 2)
return 0;
dprintk(KERN_ERR "clk: %02X %02X %02X %d %d\n", *in, *feed, *post, fxtal, fwant);
return fxtal * (*feed) / (*in) * ctl->den;
}
@ -284,7 +287,7 @@ static unsigned int matroxfb_mavenclock(const struct matrox_pll_ctl* ctl,
unsigned int* in, unsigned int* feed, unsigned int* post,
unsigned int* htotal2) {
unsigned int fvco;
unsigned int p;
unsigned int uninitialized_var(p);
fvco = matroxfb_PLL_mavenclock(&maven1000_pll, ctl, htotal, vtotal, in, feed, &p, htotal2);
if (!fvco)
@ -715,7 +718,9 @@ static int maven_find_exact_clocks(unsigned int ht, unsigned int vt,
m->regs[0x82] = 0x81;
for (x = 0; x < 8; x++) {
unsigned int a, b, c, h2;
unsigned int c;
unsigned int uninitialized_var(a), uninitialized_var(b),
uninitialized_var(h2);
unsigned int h = ht + 2 + x;
if (!matroxfb_mavenclock((m->mode == MATROXFB_OUTPUT_MODE_PAL) ? &maven_PAL : &maven_NTSC, h, vt, &a, &b, &c, &h2)) {

7
drivers/video/riva/riva_hw.c
View file

@ -1223,6 +1223,8 @@ static int CalcVClock
}
}
}
/* non-zero: M/N/P/clock values assigned. zero: error (not set) */
return (DeltaOld != 0xFFFFFFFF);
}
/*
@ -1240,7 +1242,10 @@ int CalcStateExt
int dotClock
)
{
int pixelDepth, VClk, m, n, p;
int pixelDepth;
int uninitialized_var(VClk),uninitialized_var(m),
uninitialized_var(n), uninitialized_var(p);
/*
* Save mode parameters.
*/