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| author | Dario Binacchi <dario.binacchi@amarulasolutions.com> | 2023-11-02 12:38:22 +0100 |
|---|---|---|
| committer | Dario Binacchi <dario.binacchi@amarulasolutions.com> | 2024-01-15 08:58:24 +0100 |
| commit | cbfff3b123a169e249c41b071e4065bce3a2e18a (patch) | |
| tree | 9212e2a9f0a9687ed3043ca751062b10bbab8a5a /drivers/mtd | |
| parent | 6b3d175928417f55537fe271df983f7ed52915f3 (diff) | |
| download | u-boot-cbfff3b123a169e249c41b071e4065bce3a2e18a.zip u-boot-cbfff3b123a169e249c41b071e4065bce3a2e18a.tar.gz u-boot-cbfff3b123a169e249c41b071e4065bce3a2e18a.tar.bz2 | |
mtd: nand: check nand_mtd_to_devnum() argument
If the "mtd" parameter is NULL, the search will definitely yield a
negative result. In that case, it's better to exit immediately.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Link: https://lore.kernel.org/all/20231102113829.58852-1-dario.binacchi@amarulasolutions.com
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/raw/nand.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mtd/nand/raw/nand.c b/drivers/mtd/nand/raw/nand.c index c1a0ebe..b591170 100644 --- a/drivers/mtd/nand/raw/nand.c +++ b/drivers/mtd/nand/raw/nand.c @@ -41,8 +41,11 @@ int nand_mtd_to_devnum(struct mtd_info *mtd) { int i; + if (!mtd) + return -ENODEV; + for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) { - if (mtd && get_nand_dev_by_index(i) == mtd) + if (get_nand_dev_by_index(i) == mtd) return i; } |