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kernel: fix use of uninitialized value in freelist_pop 

CID 156233 (#1 of 1): Uninitialized pointer read (UNINIT)5. uninit_use: Using uninitialized value fimg.
This commit is contained in:
Giacomo Tesio 2017-01-15 01:03:35 +01:00
parent c4fb99ec38
commit f2f95a935f
1 changed files with 4 additions and 1 deletions
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5
sys/src/kern/port/umem/images.c
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@ -280,6 +280,8 @@ freelist_pop(int blankslot, int originally_allocated)
unsigned short *next, *fptr;
ImagePointer ptr = 0;
fimg = nil;
wlock(&pool_lock);
/* if more blanks have been allocated after blankslot,
@ -287,7 +289,8 @@ freelist_pop(int blankslot, int originally_allocated)
* instead
*/
if(originally_allocated < pool.allocated){
return pool.allocated - blankslot;
ptr = pool.allocated - blankslot;
goto Done;
}
if(pool.sleeping == 0)