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| author | Benedikt Niedermayr <benedikt.niedermayr@siemens.com> | 2022-12-09 12:28:28 +0100 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2022-12-27 09:51:24 +0100 |
| commit | 827e0920dbfb0d92416e56081d70745597403446 (patch) | |
| tree | 9c79dc8198a1ff2b627cd3a4ed86c76b060e6696 /drivers/memory | |
| parent | 1b929c02afd37871d5afb9d498426f83432e71c2 (diff) | |
| download | lwn-827e0920dbfb0d92416e56081d70745597403446.tar.gz lwn-827e0920dbfb0d92416e56081d70745597403446.zip | |
memory: omap-gpmc: fix wait pin validation
This bug has been introduced after switching from -1 to UINT_MAX
for GPMC_WAITPIN_INVALID.
The bug leads to an error when the optional gpmc,wait-pin
dt-property is not used:
...
gpmc_cs_program_settings: invalid wait-pin (-1)
...
Signed-off-by: Benedikt Niedermayr <benedikt.niedermayr@siemens.com>
Fixes: 8dd7e4af5853 ("memory: omap-gpmc: fix coverity issue "Control flow issues"")
Acked-by: Roger Quadros <rogerq@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20221209112828.581491-1-benedikt.niedermayr@siemens.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Diffstat (limited to 'drivers/memory')
| -rw-r--r-- | drivers/memory/omap-gpmc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c index 57d9f91fe89b..d78f73db37c8 100644 --- a/drivers/memory/omap-gpmc.c +++ b/drivers/memory/omap-gpmc.c @@ -1918,7 +1918,8 @@ int gpmc_cs_program_settings(int cs, struct gpmc_settings *p) } } - if (p->wait_pin > gpmc_nr_waitpins) { + if (p->wait_pin != GPMC_WAITPIN_INVALID && + p->wait_pin > gpmc_nr_waitpins) { pr_err("%s: invalid wait-pin (%d)\n", __func__, p->wait_pin); return -EINVAL; } |