[PATCH v2 5/7] mtd: spi-nor: fix select_uniform_erase to skip 0 erase size

[Michael Walle]

4bait will set the erase size to 0 if there is no corresponding
opcode for the 4byte erase. Fix spi_nor_select_uniform_erase to skip
the 0 erase size to avoid mtd device registration failure cases.

Reported-by: Jae Hyun Yoo <quic_jaehyoo at quicinc.com>
Signed-off-by: Michael Walle <michael at walle.cc>
---
 drivers/mtd/spi-nor/core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index f1d01c7dacce..42f9bb63919c 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -2118,6 +2118,10 @@ spi_nor_select_uniform_erase(struct spi_nor_erase_map *map,
 
 		tested_erase = &map->erase_type[i];
 
+		/* Skip masked erase types. */
+		if (!tested_erase->size)
+			continue;
+
 		/*
 		 * If the current erase size is the one, stop here:
 		 * we have found the right uniform Sector Erase command.
-- 
2.30.2