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authorWill Deacon <will.deacon@arm.com>2010-08-29 14:51:59 -0400
committerRobert Richter <robert.richter@amd.com>2010-08-31 11:47:50 +0200
commit979048e1f26190d16b5aea87166177f37e614439 (patch)
tree28c6e5c6c11343f934249cfdf9cc806f8a587758
parent2bfc96a127bc1cc94d26bfaa40159966064f9c8c (diff)
downloadop-kernel-dev-979048e1f26190d16b5aea87166177f37e614439.zip
op-kernel-dev-979048e1f26190d16b5aea87166177f37e614439.tar.gz
oprofile: don't call arch exit code from init code on failure
oprofile_init calls oprofile_arch_init to initialise the architecture-specific backend code. If this backend code returns failure, oprofile_arch_exit is called immediately, making it difficult to allocate and free resources correctly. This patch removes the oprofile_arch_exit call from oprofile_init, meaning that all architectures must ensure that oprofile_arch_init cleans up any mess it's made before returning an error. As far as I can tell, this only affects the code for ARM. Cc: Robert Richter <robert.richter@amd.com> Cc: Matt Fleming <matt@console-pimps.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
-rw-r--r--drivers/oprofile/oprof.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
index b336cd9..b4a6857 100644
--- a/drivers/oprofile/oprof.c
+++ b/drivers/oprofile/oprof.c
@@ -257,16 +257,9 @@ static int __init oprofile_init(void)
printk(KERN_INFO "oprofile: using timer interrupt.\n");
err = oprofile_timer_init(&oprofile_ops);
if (err)
- goto out_arch;
+ return err;
}
- err = oprofilefs_register();
- if (err)
- goto out_arch;
- return 0;
-
-out_arch:
- oprofile_arch_exit();
- return err;
+ return oprofilefs_register();
}
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