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| author | Lothar Waßmann <LW@KARO-electronics.de> | 2017-08-29 12:17:13 +0200 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2017-08-29 18:23:50 +0200 |
| commit | 2d2a2b8c080ad8feab7ca87769dedb3c7a83a375 (patch) | |
| tree | bf1eee410798935e7318f878f12be25f4696a729 /include/linux/mtd | |
| parent | 69fc01296c92814b62dbfba1600fe7ed2ed304f5 (diff) | |
| download | linux-stable-2d2a2b8c080ad8feab7ca87769dedb3c7a83a375.tar.gz linux-stable-2d2a2b8c080ad8feab7ca87769dedb3c7a83a375.tar.bz2 linux-stable-2d2a2b8c080ad8feab7ca87769dedb3c7a83a375.zip | |
mtd: nand: complain loudly when chip->bits_per_cell is not correctly initialized
chip->bits_per_cell which is used to determine the NAND cell type
(SLC/MLC) should always have a value != 0.
Complain loudly if the value is 0 in nand_is_slc() to catch use before
correct initialization.
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/rawnand.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 8fb488d586d6..c433f093766a 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1234,6 +1234,8 @@ int onfi_init_data_interface(struct nand_chip *chip, */ static inline bool nand_is_slc(struct nand_chip *chip) { + WARN(chip->bits_per_cell == 0, + "chip->bits_per_cell is used uninitialized\n"); return chip->bits_per_cell == 1; } |