staging: mt7621-mmc: Check for nonzero number of scatterlist entries

Browse source

The buffer descriptor setup loop is correct only if it is setting up at
least one bd struct.  Besides, there is an error if dma_map_sg() returns
0, which is possible and must be handled.

Additionally, remove the BUG_ON() checking sglen, which is unnecessary
because we configure DMA with that constraint during init.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

George Hilliard 2019-03-20 16:42:05 -06:00 • committed by Greg Kroah-Hartman

parent f2778bb3cb

commit d4223e06b6

1 changed files with 7 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

9

drivers/staging/mt7621-mmc/sd.c

View file