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authorMuli Ben-Yehuda <muli@il.ibm.com>2007-07-17 04:05:15 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:10 -0700
commit3b20b9b4e985fcc48b4eea401cb289a856422c93 (patch)
tree7af15a26530ae4c1623cd02a4722678747741a28 /kernel/irq/internals.h
parentd8f75b9183d613d3c29ea451a1cfb793daad5034 (diff)
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OSS trident: fix locking around write_voice_regs
trident_write_voice_regs() was getting called with the card spinlock held in only some cases. Fix it. Explanation: we allocate a new virtual channel in open, and then we frob some hardware registers (in write_voice_regs) for that channel. But the hardware registers are shared with other channels, which may be trying to frob the some registers (albeit for another channel) via ioctl(SNDCTL_DSP_SPEED). Fixed bugzilla.kernel.org bug #8172 (http://bugme.osdl.org/show_bug.cgi?id=8172) Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Cc: <tammy000@gmail.com> Cc: <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/irq/internals.h')
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