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| author | Wen Yang <wen.yang99@zte.com.cn> | 2019-03-26 18:29:51 +0800 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-04-20 22:02:35 +1000 |
| commit | cc76404feaed597bb4f5234d34d3f49e2d1139bf (patch) | |
| tree | 44d7a02ed2d418b2a89c61911c8ff2b893649386 /arch/powerpc/platforms/8xx | |
| parent | 7f177f9810ada8ec2e8b378eddbe2d91fda79c9b (diff) | |
| download | linux-cc76404feaed597bb4f5234d34d3f49e2d1139bf.tar.bz2 | |
powerpc/8xx: Fix possible device node reference leak
The call to of_find_compatible_node() returns a node pointer with
refcount incremented thus it must be explicitly decremented after the
last usage.
irq_domain_add_linear() also calls of_node_get() to increase refcount,
so irq_domain() will not be affected when it is released.
Detected by coccinelle.
Fixes: a8db8cf0d894 ("irq_domain: Replace irq_alloc_host() with revmap-specific initializers")
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Peng Hao <peng.hao2@zte.com.cn>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/8xx')
| -rw-r--r-- | arch/powerpc/platforms/8xx/pic.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/8xx/pic.c b/arch/powerpc/platforms/8xx/pic.c index 8d5a25d43ef3..e9617d35fd1f 100644 --- a/arch/powerpc/platforms/8xx/pic.c +++ b/arch/powerpc/platforms/8xx/pic.c @@ -153,10 +153,9 @@ int mpc8xx_pic_init(void) if (mpc8xx_pic_host == NULL) { printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n"); ret = -ENOMEM; - goto out; } - return 0; + ret = 0; out: of_node_put(np); return ret; |