leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

spi: ti-qspi: Make sure res_mmap != NULL before dereferencing it

Browse Source 
resource_size() is dereferencing the res without checking that it is
not NULL, so we need to do the check before calling resource_size().

Fixes: b95cb394ab ("spi: ti-qspi: Implement the spi_mem interface")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Boris Brezillon 2018-05-14 11:11:29 +02:00 committed by Mark Brown
parent e935dba111
commit 6282f12291
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/spi/spi-ti-qspi.c
View File

@ -718,7 +718,9 @@ static int ti_qspi_probe(struct platform_device *pdev)
"memory mapped resource not required\n");
}
}
qspi->mmap_size = resource_size(res_mmap);
if (res_mmap)
qspi->mmap_size = resource_size(res_mmap);
irq = platform_get_irq(pdev, 0);
if (irq < 0) {