Eric Lee / smarc-ti-linux-kernel

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Commit 90cce03d9bfcb28600a56efef6b0a5a4fbf6c2b1

Authored by Oleg Nesterov
Committed by Linus Torvalds
1 parent b8a124da92
Exists in master and in 20 other branches dlt-processor-sdk-linux-03.00.00.04, newt-ti-linux-3.12.y, processor-sdk-linux-01.00.00, processor-sdk-linux-02.00.01, smarc-ti-linux-3.12.10, smarc-ti-linux-3.12.y, smarc-ti-linux-3.14.y, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.12.y, ti-linux-3.14.y, ti-linux-3.15.y, ti-lsk-linux-4.1.y

wait_for_helper: remove unneeded do_sigaction() 

allow_signal(SIGCHLD) does all necessary job, no need to call do_sigaction()
prior to.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 0 additions and 5 deletions Side-by-side Diff

... ... @@ -185,14 +185,9 @@
185 185 {
186 186 struct subprocess_info *sub_info = data;
187 187 pid_t pid;
188   - struct k_sigaction sa;
189 188  
190 189 /* Install a handler: if SIGCLD isn't handled sys_wait4 won't
191 190 * populate the status, but will return -ECHILD. */
192   - sa.sa.sa_handler = SIG_IGN;
193   - sa.sa.sa_flags = 0;
194   - siginitset(&sa.sa.sa_mask, sigmask(SIGCHLD));
195   - do_sigaction(SIGCHLD, &sa, NULL);
196 191 allow_signal(SIGCHLD);
197 192  
198 193 pid = kernel_thread(____call_usermodehelper, sub_info, SIGCHLD);