diff options
| author | Michael Buesch <mb@bu3sch.de> | 2009-09-11 18:00:19 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-09-23 19:35:44 +0400 |
| commit | a8696c800b8154e27b359866f7b837079cdb513a (patch) | |
| tree | 6407ebbe05d64a5f070faac02b3464102e572661 /drivers/net/wireless/b43/sdio.c | |
| parent | ce6c4a13927bc0418169fe543c6614abfab051eb (diff) | |
| download | linux-a8696c800b8154e27b359866f7b837079cdb513a.tar.xz | |
b43: Fix SDIO interrupt handler deadlock
We need to release the SDIO host before locking the driver mutex.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/sdio.c')
| -rw-r--r-- | drivers/net/wireless/b43/sdio.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/sdio.c b/drivers/net/wireless/b43/sdio.c index 2d337f1a60b2..0d3ac64147a5 100644 --- a/drivers/net/wireless/b43/sdio.c +++ b/drivers/net/wireless/b43/sdio.c @@ -54,7 +54,12 @@ static void b43_sdio_interrupt_dispatcher(struct sdio_func *func) struct b43_sdio *sdio = sdio_get_drvdata(func); struct b43_wldev *dev = sdio->irq_handler_opaque; + if (unlikely(b43_status(dev) < B43_STAT_STARTED)) + return; + + sdio_release_host(func); sdio->irq_handler(dev); + sdio_claim_host(func); } int b43_sdio_request_irq(struct b43_wldev *dev, |