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| author |   Nicolas Iooss <nicolas.iooss_linux@m4x.org> | 2015-07-05 09:57:41 +0800 |
|---|---|---|
| committer |   Brian Norris <computersforpeace@gmail.com> | 2015-07-20 10:38:25 -0700 |
| commit | cef1ed9c6bcf69245c0b9eb89b3f3a45049ba10c (patch) | |
| tree | de6f8a1b084250418a75b894b989f6f60bb6b861 /drivers/mtd | |
| parent | nand: davinci: add support for 4K page size nand devices (diff) | |
| download | linux-dev-cef1ed9c6bcf69245c0b9eb89b3f3a45049ba10c.tar.xz linux-dev-cef1ed9c6bcf69245c0b9eb89b3f3a45049ba10c.zip | |
mtd: r852: make ecc_reg 32-bit in r852_ecc_correct
r852_ecc_correct() reads a 32-bit register into a 16-bit variable,
ecc_reg, but this variable is later used as if it was larger. This is
reported by clang when building the kernel with many warnings:
drivers/mtd/nand/r852.c:512:11: error: shift count >= width of type
[-Werror,-Wshift-count-overflow]
ecc_reg >>= 16;
^ ~~
Fix this by making ecc_reg 32-bit, like the return type of
r852_read_reg_dword().
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/r852.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index 77e96d2df96c..cc6bac537f5a 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -466,7 +466,7 @@ static int r852_ecc_calculate(struct mtd_info *mtd, const uint8_t *dat, static int r852_ecc_correct(struct mtd_info *mtd, uint8_t *dat, uint8_t *read_ecc, uint8_t *calc_ecc) { - uint16_t ecc_reg; + uint32_t ecc_reg; uint8_t ecc_status, err_byte; int i, error = 0; |