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| author | Jiada Wang <jiada_wang@mentor.com> | 2017-05-18 12:01:12 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-05-19 18:57:08 +0200 |
| commit | 179547e143e773f9f866ad3536275ab627711f3a (patch) | |
| tree | ef6963146f02d29748b8059a8a7ce31e2abd46b4 /drivers/spi/spi-dln2.c | |
| parent | spi: imx: dynamic burst length adjust for PIO mode (diff) | |
| download | linux-179547e143e773f9f866ad3536275ab627711f3a.tar.xz linux-179547e143e773f9f866ad3536275ab627711f3a.zip | |
spi: imx: fix issue when tx_buf or rx_buf is NULL
In case either transfer->tx_buf or transfer->rx_buf is NULL,
manipulation of buffer in spi_imx_u32_swap_u[8|16]() will cause
NULL pointer dereference crash.
Add buffer check at very beginning of spi_imx_u32_swap_u[8|16](),
to avoid such crash.
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Reported-by: Leonard Crestez <leonard.crestez@nxp.com>
Tested-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-dln2.c')
0 files changed, 0 insertions, 0 deletions