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| author | Robert Jarzmik <robert.jarzmik@free.fr> | 2016-07-14 17:05:50 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-07-18 11:50:40 +0200 |
| commit | b3802db5eb72d2a96f4aa4ff0abb937033df2acf (patch) | |
| tree | 913e1b312515180d010d34eb16d3628fb29a0fca /drivers/mailbox | |
| parent | f68381a70bb2b26c31b13fdaf67c778f92fd32b4 (diff) | |
| download | linux-b3802db5eb72d2a96f4aa4ff0abb937033df2acf.tar.gz | |
mmc: pxamci: fix potential oops
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 fd546ee6a7dc ("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: fd546ee6a7dc ("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>
Diffstat (limited to 'drivers/mailbox')
0 files changed, 0 insertions, 0 deletions