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authorPavel Herrmann <morpheus.ibis@gmail.com>2011-07-17 18:39:19 +0200
committerPaul Gortmaker <paul.gortmaker@windriver.com>2012-05-17 11:21:11 -0400
commitfd4eb5ed110c04d95e6f57dee0f6ebabfd4e20b0 (patch)
tree00985136d3e0402a76a1cb1b652855fa55460a69 /net/bridge/br_stp_bpdu.c
parent2d89eba9cc7be4dfabe523067bff245632181536 (diff)
hwmon: (max1111) Fix race condition causing NULL pointer exception
commit d3f684f2820a7f42acef68bea6622d9032127fb2 upstream. spi_sync call uses its spi_message parameter to keep completion information, using a drvdata structure is not thread-safe. Use a mutex to prevent multiple access to shared driver data. Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Cyril Hrubis <metan@ucw.cz> Tested-by: Stanislav Brabec <utx@penguin.cz> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'net/bridge/br_stp_bpdu.c')
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