Colin Ian King 41a0c249cb proc: fix -ESRCH error when writing to /proc/$pid/coredump_filter ...

Writing to /proc/$pid/coredump_filter always returns -ESRCH because commit
774636e19ed51 ("proc: convert to kstrto*()/kstrto*_from_user()") removed
the setting of ret after the get_proc_task call and incorrectly left it as
-ESRCH.  Instead, return 0 when successful.

Example breakage:

  echo 0 > /proc/self/coredump_filter
  bash: echo: write error: No such process

Fixes: 774636e19ed51 ("proc: convert to kstrto*()/kstrto*_from_user()")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: <stable@vger.kernel.org> [4.3+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2015-12-18 14:25:40 -08:00

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array.c

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base.c

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cmdline.c

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consoles.c

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cpuinfo.c

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devices.c

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fd.c

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fd.h

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generic.c

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inode.c

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internal.h

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interrupts.c

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Kconfig

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kcore.c

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kmsg.c

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loadavg.c

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Makefile

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meminfo.c

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namespaces.c

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nommu.c

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page.c

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proc_net.c

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proc_sysctl.c

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proc_tty.c

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root.c

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self.c

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softirqs.c

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stat.c

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task_mmu.c

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task_nommu.c

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thread_self.c

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uptime.c

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version.c

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vmcore.c

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