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staging: tidspbridge: check return code of get_user 

Function get_user may fail. Check for it.

Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Vasiliy Kulikov 2010-09-05 22:32:45 +04:00 committed by Greg Kroah-Hartman
parent 2fac6c290f
commit b04462a143
1 changed files with 5 additions and 1 deletions
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6
drivers/staging/tidspbridge/pmgr/dspapi.c
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@ -872,7 +872,11 @@ u32 procwrap_load(union trapped_args *args, void *pr_ctxt)
/* number of elements in the envp array including NULL */
count = 0;
do {
get_user(temp, args->args_proc_load.user_envp + count);
if (get_user(temp,
args->args_proc_load.user_envp + count)) {
status = -EFAULT;
goto func_cont;
}
count++;
} while (temp);
envp = kmalloc(count * sizeof(u8 *), GFP_KERNEL);