UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

sparc32: Fix might-be-used-uninitialized warning in do_sparc_fault(). 

When we try to handle vmalloc faults, we can take a code
path which uses "code" before we actually set it.

Amusingly gcc-3.3 notices this yet gcc-4.x does not.

Reported-by: Bob Breuer <breuerr@mc.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-03-09 13:00:47 -08:00
parent 35043c428f
commit c816be7b5f
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/sparc/mm/fault_32.c
View File

@ -240,11 +240,10 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
* only copy the information from the master page table,
* nothing more.
*/
code = SEGV_MAPERR;
if (!ARCH_SUN4C && address >= TASK_SIZE)
goto vmalloc_fault;
code = SEGV_MAPERR;
/*
* If we're in an interrupt or have no user
* context, we must not take the fault..