The max_phys_sect variable is defined as a char. We do a boundary check
to maximally allow 256 physical page descriptors per command. As we are
not indexing from zero. This expression is always in false. Bump the
max_phys_sect to an unsigned short to support the range chech.

Signed-off-by: Matias Bjørling <m...@bjorling.me>
Reported-by: Geert Uytterhoeven <ge...@linux-m68k.org>
---
 include/linux/lightnvm.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index 69c9057..e8bc52a 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -220,7 +220,7 @@ struct nvm_dev_ops {
        nvm_dev_dma_alloc_fn    *dev_dma_alloc;
        nvm_dev_dma_free_fn     *dev_dma_free;
 
-       uint8_t                 max_phys_sect;
+       unsigned short          max_phys_sect;
 };
 
 struct nvm_lun {
-- 
2.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to