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authorLinus Torvalds <torvalds@linux-foundation.org>2014-09-12 12:00:49 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-09-12 12:00:49 -0700
commit471cff7c42b56dbbd69003c25bbd97cf6776d464 (patch)
tree11fcc235638570e0013ba341498644c8bff76a04 /drivers
parentMerge tag 'staging-3.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging (diff)
parentLattice ECP3 FPGA: Check firmware pointer (diff)
downloadlinux-dev-471cff7c42b56dbbd69003c25bbd97cf6776d464.tar.xz
linux-dev-471cff7c42b56dbbd69003c25bbd97cf6776d464.zip
Merge tag 'char-misc-3.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fix from Greg KH: "Here is one misc driver fix for 3.17-rc5. It resolves a kernel oops that can happen in the lattice FPGA driver if the firmware isn't present on the system. It's been in the linux-next tree for a while now" * tag 'char-misc-3.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Lattice ECP3 FPGA: Check firmware pointer
Diffstat (limited to 'drivers')
-rw-r--r--drivers/misc/lattice-ecp3-config.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/lattice-ecp3-config.c b/drivers/misc/lattice-ecp3-config.c
index 7ffdb589841e..7e1efd5f58f0 100644
--- a/drivers/misc/lattice-ecp3-config.c
+++ b/drivers/misc/lattice-ecp3-config.c
@@ -79,6 +79,11 @@ static void firmware_load(const struct firmware *fw, void *context)
u32 jedec_id;
u32 status;
+ if (fw == NULL) {
+ dev_err(&spi->dev, "Cannot load firmware, aborting\n");
+ return;
+ }
+
if (fw->size == 0) {
dev_err(&spi->dev, "Error: Firmware size is 0!\n");
return;