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| author | Eugeniu Rosca <erosca@de.adit-jv.com> | 2017-08-13 12:06:29 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-08-27 12:58:19 +0200 |
| commit | 87e9201108b7d63cc4a50faca3baad48c4ec99f8 (patch) | |
| tree | e222d2464c953c2adecc075fe9b7fc6b86a1ecf0 /drivers/dma/virt-dma.c | |
| parent | media: au0828: fix unbalanced lock/unlock in au0828_usb_probe (diff) | |
| download | linux-87e9201108b7d63cc4a50faca3baad48c4ec99f8.tar.xz linux-87e9201108b7d63cc4a50faca3baad48c4ec99f8.zip | |
media: mxl111sf: Fix potential null pointer dereference
Reviewing the delta between cppcheck output of v4.9.39 and v4.9.40
stable updates, I stumbled on the new warning:
mxl111sf.c:80: (warning) Possible null pointer dereference: rbuf
Since copying state->rcvbuf into rbuf is not needed in the 'write-only'
scenario (i.e. calling mxl111sf_ctrl_msg() from mxl111sf_i2c_send_data()
or from mxl111sf_write_reg()), bypass memcpy() in this case.
Fixes: d90b336f3f65 ("[media] mxl111sf: Fix driver to use heap allocate buffers for USB messages")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/dma/virt-dma.c')
0 files changed, 0 insertions, 0 deletions