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authorDaniel Drake <dsd@laptop.org>2011-06-03 00:13:26 +0100
committerJohn W. Linville <linville@tuxdriver.com>2011-06-03 14:22:06 -0400
commitd2ac49fe3c7c4730323c1042fb53a2e008643b6a (patch)
treec216b63dcbf466cdf6ceac26d11a6a0a19bb5e39 /net/mac80211/key.c
parent59e7e7078d6c2c6294caf454c6e3695f9d3e46a2 (diff)
downloadop-kernel-dev-d2ac49fe3c7c4730323c1042fb53a2e008643b6a.zip
op-kernel-dev-d2ac49fe3c7c4730323c1042fb53a2e008643b6a.tar.gz
libertas_sdio: handle spurious interrupts
Commit 06e8935febe687e2a561707d4c7ca4245d261dbe adds an IRQ handling optimization for single-function SDIO cards like this one, but at the same time exposes a small hardware bug. During hardware init, an interrupt is generated with (apparently) no source. Previously, mmc threw this interrupt away, but now (due to the optimization), the mmc layer passes this onto libertas, before it is ready (and before it has enabled interrupts), causing a crash. Work around this hardware bug by registering the IRQ handler later and making it capable of handling interrupts with no cause. The change that makes the IRQ handler registration happen later actually eliminates the spurious interrupt as well. Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/key.c')
0 files changed, 0 insertions, 0 deletions
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