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| author | Oleg Nesterov <oleg@redhat.com> | 2010-05-26 14:43:07 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-27 09:12:45 -0700 |
| commit | 5e43aef530ba39206f7923295388f7ec3c5a7d93 (patch) | |
| tree | b29b706cff64eb47cc881a793566e38a511843f1 /fs/exec.c | |
| parent | d5bf4c4f5f9dcc90b7e25dbb2f7c4436cf6e7ed0 (diff) | |
| download | linux-stable-5e43aef530ba39206f7923295388f7ec3c5a7d93.tar.gz linux-stable-5e43aef530ba39206f7923295388f7ec3c5a7d93.tar.bz2 linux-stable-5e43aef530ba39206f7923295388f7ec3c5a7d93.zip | |
coredump: factor out put_cred() calls
Given that do_coredump() calls put_cred() on exit path, it is a bit ugly
to do put_cred() + "goto fail" twice, just add the new "fail_creds" label.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/fs/exec.c b/fs/exec.c index 1221c4c43547..6501823b7a1b 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1862,10 +1862,8 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) goto fail; cred = prepare_creds(); - if (!cred) { - retval = -ENOMEM; + if (!cred) goto fail; - } down_write(&mm->mmap_sem); /* @@ -1873,8 +1871,7 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) */ if (mm->core_state || !__get_dumpable(cprm.mm_flags)) { up_write(&mm->mmap_sem); - put_cred(cred); - goto fail; + goto fail_creds; } /* @@ -1889,10 +1886,8 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) } retval = coredump_wait(exit_code, &core_state); - if (retval < 0) { - put_cred(cred); - goto fail; - } + if (retval < 0) + goto fail_creds; old_cred = override_creds(cred); @@ -2009,9 +2004,10 @@ fail_dropcount: if (ispipe) atomic_dec(&core_dump_count); fail_unlock: + coredump_finish(mm); revert_creds(old_cred); +fail_creds: put_cred(cred); - coredump_finish(mm); fail: return; } |