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mtd: spi-nor: fix flash probing

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Fix flash probing by name. Flash entries without a name are allowed
since commit 15eb8303bb ("mtd: spi-nor: mark the flash name as
obsolete"). But it was just until recently that a flash entry without a
name was actually introduced. This triggers a bug in the legacy probe by
name path. Skip entries without a name to fix it.

Fixes: 2095e7da80 ("mtd: spi-nor: spansion: Add support for S28HS256T")
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Closes: https://lore.kernel.org/r/66c8ebb0-1324-4ad9-9926-8d4eb7e1e63a@nvidia.com/
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
Link: https://lore.kernel.org/r/20240909072854.812206-1-mwalle@kernel.org
This commit is contained in:
Michael Walle 2024-09-09 09:28:54 +02:00 committed by Pratyush Yadav
parent 1dc6cd4f94
commit ac5bfa968b
1 changed files with 2 additions and 1 deletions
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3
drivers/mtd/spi-nor/core.c
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@ -3281,7 +3281,8 @@ static const struct flash_info *spi_nor_match_name(struct spi_nor *nor,
for (i = 0; i < ARRAY_SIZE(manufacturers); i++) {
for (j = 0; j < manufacturers[i]->nparts; j++) {
if (!strcmp(name, manufacturers[i]->parts[j].name)) {
if (manufacturers[i]->parts[j].name &&
!strcmp(name, manufacturers[i]->parts[j].name)) {
nor->manufacturer = manufacturers[i];
return &manufacturers[i]->parts[j];
}