Robert Jarzmik fd0abc1fd2 mmc: pxamci: fix potential oops ... commit b3802db5eb upstream. As reported by Dan in his report in [1], there is a potential NULL pointer derefence if these conditions are met : - there is no platform_data provided, ie. host->pdata = NULL Fix this by only using the platform data ro_invert when a gpio for read-only is provided by the platform data. This doesn't appear yet as every pxa board provides a platform_data, and calls pxa_set_mci_info() with a non NULL pointer. [1] [bug report] mmc: pxamci: fix card detect with slot-gpio API. The commit fd546ee6a7 ("mmc: pxamci: fix card detect with slot-gpio API") from Sep 26, 2015, leads to the following static checker warning: drivers/mmc/host/pxamci.c:809 pxamci_probe() warn: variable dereferenced before check 'host->pdata' (see line 798) Fixes: fd546ee6a7 ("mmc: pxamci: fix card detect with slot-gpio API") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-10-07 15:23:41 +02:00
..
card	mmc: block: fix packed command header endianness	2016-08-10 11:49:28 +02:00
core	mmc: longer timeout for long read time quirk	2016-06-01 12:15:50 -07:00
host	mmc: pxamci: fix potential oops	2016-10-07 15:23:41 +02:00
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