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SUNRPC: Refactor gssx_dec_option_array() to kill uninitialized warning 

net/sunrpc/auth_gss/gss_rpc_xdr.c: In function ‘gssx_dec_option_array’:
net/sunrpc/auth_gss/gss_rpc_xdr.c:258: warning: ‘creds’ may be used uninitialized in this function

Return early if count is zero, to make it clearer to the compiler (and the
casual reviewer) that no more processing is done.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Geert Uytterhoeven 2013-05-06 09:21:03 +02:00 committed by J. Bruce Fields
parent 9f415eb255
commit 9fd40c5a66
1 changed files with 17 additions and 15 deletions
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32
net/sunrpc/auth_gss/gss_rpc_xdr.c
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@ -264,25 +264,27 @@ static int gssx_dec_option_array(struct xdr_stream *xdr,
if (unlikely(p == NULL))
return -ENOSPC;
count = be32_to_cpup(p++);
if (count != 0) {
/* we recognize only 1 currently: CREDS_VALUE */
oa->count = 1;
if (!count)
return 0;
oa->data = kmalloc(sizeof(struct gssx_option), GFP_KERNEL);
if (!oa->data)
return -ENOMEM;
/* we recognize only 1 currently: CREDS_VALUE */
oa->count = 1;
creds = kmalloc(sizeof(struct svc_cred), GFP_KERNEL);
if (!creds) {
kfree(oa->data);
return -ENOMEM;
}
oa->data = kmalloc(sizeof(struct gssx_option), GFP_KERNEL);
if (!oa->data)
return -ENOMEM;
oa->data[0].option.data = CREDS_VALUE;
oa->data[0].option.len = sizeof(CREDS_VALUE);
oa->data[0].value.data = (void *)creds;
oa->data[0].value.len = 0;
creds = kmalloc(sizeof(struct svc_cred), GFP_KERNEL);
if (!creds) {
kfree(oa->data);
return -ENOMEM;
}
oa->data[0].option.data = CREDS_VALUE;
oa->data[0].option.len = sizeof(CREDS_VALUE);
oa->data[0].value.data = (void *)creds;
oa->data[0].value.len = 0;
for (i = 0; i < count; i++) {
gssx_buffer dummy = { 0, NULL };
u32 length;