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authorMax Krummenacher <max.krummenacher@toradex.com>2021-10-16 13:04:24 +0200
committerMax Krummenacher <max.krummenacher@toradex.com>2021-10-16 13:04:24 +0200
commitf8e718054f4421d11638e370b933ccc6c77466ed (patch)
tree973ff8cb8aed7d8e4da6a194456ddc01c206b7de /drivers/char/pcmcia/cm4000_cs.c
parentd900385139e5aa8d584dee92c87bb85d0226253e (diff)
parent1392fe82d7fba00ba4a8e01968935f2b2085d5a4 (diff)
Merge tag 'v4.4.288' into toradex_vf_4.4
This is the 4.4.288 stable release Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Diffstat (limited to 'drivers/char/pcmcia/cm4000_cs.c')
-rw-r--r--drivers/char/pcmcia/cm4000_cs.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index c115217c79ae..f8d98f7e6fb7 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -544,6 +544,10 @@ static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
io_read_num_rec_bytes(iobase, &num_bytes_read);
if (num_bytes_read >= 4) {
DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read);
+ if (num_bytes_read > 4) {
+ rc = -EIO;
+ goto exit_setprotocol;
+ }
break;
}
mdelay(10);