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| author | Julia Lawall <julia@diku.dk> | 2009-08-09 11:42:32 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-12-02 23:58:32 +0000 |
| commit | 0fdd07f77fd9cc6a7d49076793daef06ea5d8f13 (patch) | |
| tree | 368db433db7c1927a3eddb8b746b4038172053c0 /drivers | |
| parent | dbf763a2f1c117cfe45bbbd2c874a150f0e0900b (diff) | |
| download | linux-0fdd07f77fd9cc6a7d49076793daef06ea5d8f13.tar.bz2 | |
VIDEO: Correct use of request_region/request_mem_region
request_region should be used with release_region, not request_mem_region.
Geert Uytterhoeven pointed out that in the case of drivers/video/gbefb.c,
the problem is actually the other way around; request_mem_region should be
used instead of request_region.
The semantic patch that finds/fixes this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r1@
expression start;
@@
request_region(start,...)
@b1@
expression r1.start;
@@
request_mem_region(start,...)
@depends on !b1@
expression r1.start;
expression E;
@@
- release_mem_region
+ release_region
(start,E)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/gbefb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c index 1a83709f9611..f67db4268374 100644 --- a/drivers/video/gbefb.c +++ b/drivers/video/gbefb.c @@ -1147,7 +1147,7 @@ static int __init gbefb_probe(struct platform_device *p_dev) gbefb_setup(options); #endif - if (!request_region(GBE_BASE, sizeof(struct sgi_gbe), "GBE")) { + if (!request_mem_region(GBE_BASE, sizeof(struct sgi_gbe), "GBE")) { printk(KERN_ERR "gbefb: couldn't reserve mmio region\n"); ret = -EBUSY; goto out_release_framebuffer; |