diff options
| author | Md Sadre Alam <quic_mdalam@quicinc.com> | 2026-02-06 14:07:52 +0530 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2026-02-06 10:03:58 +0100 |
| commit | e82269e7cb93a2d33368418be4ee56015b4adc27 (patch) | |
| tree | 5f9b4dd948ecc4162ff96479e1955f56085f451b | |
| parent | 1e06dbfdfb851170b243d6498e442b449324c664 (diff) | |
mtd: spinand: fix NULL pointer dereference in spinand_support_vendor_ops()
The spinand_support_vendor_ops() helper unconditionally dereferences
info->vendor_ops. For chips that do not define vendor_ops, this pointer
is NULL, leading to a kernel panic during probe:
Unable to handle kernel NULL pointer dereference at virtual address
0000000000000008
Add a guard to return early when vendor_ops is NULL. This prevents the
crash and allows SPI NAND devices without vendor-specific operations to
be probed correctly.
Fixes: fbc7538782f8 ("mtd: spinand: List vendor specific operations and make sure they are supported")
Cc: stable@vger.kernel.org
Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
| -rw-r--r-- | drivers/mtd/nand/spi/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c index 514f653f27f3..29fb2ac19569 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -1435,6 +1435,8 @@ static int spinand_support_vendor_ops(struct spinand_device *spinand, { int i; + if (!info->vendor_ops) + return 0; /* * The vendor ops array is only used in order to verify this chip and all its memory * operations are supported. If we see patterns emerging, we could ideally name these |