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ftrace: check for failure for all conversions

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commit 3279ba37db5d65c4ab0dcdee3b211ccb85bb563f upstream.

Due to legacy code from back when the dynamic tracer used a daemon,
only core kernel code was checking for failures. This is no longer
the case. We must check for failures any time we perform text modifications.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Steven Rostedt
2009-10-07 16:57:56 -04:00
committed by Greg Kroah-Hartman
parent 6e4be6c9d0
commit 1afc593a47
1 changed files with 3 additions and 8 deletions
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11
kernel/trace/ftrace.c
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@@ -1110,14 +1110,9 @@ static void ftrace_replace_code(int enable)
failed = __ftrace_replace_code(rec, enable);
if (failed) {
rec->flags |= FTRACE_FL_FAILED;
if ((system_state == SYSTEM_BOOTING) ||
!core_kernel_text(rec->ip)) {
ftrace_free_rec(rec);
} else {
ftrace_bug(failed, rec->ip);
/* Stop processing */
return;
}
ftrace_bug(failed, rec->ip);
/* Stop processing */
return;
}
} while_for_each_ftrace_rec();
}