9p: fix memleak in fs/9p/v9fs.c

This patch fixes a memory leak introduced by
commit ba17674fe02909fef049fd4b620a2805bdb8c693.

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

authored by Adrian Bunk and committed by Eric Van Hensbergen 0a976297 b530cc79

+1
+1
fs/9p/v9fs.c
··· 162 if (*e != '\0') 163 v9ses->uid = ~0; 164 } 165 break; 166 167 default:
··· 162 if (*e != '\0') 163 v9ses->uid = ~0; 164 } 165 + kfree(s); 166 break; 167 168 default: