From: Konrad Zapalowicz <bergo.torino@xxxxxxxxx>
Commit 59939d1eaadbb374b04648a35ff5560db58afeba upstream.
This comit fixes the following sparse warnign:
drivers/staging/dgnc/dgnc_tty.c:572:1:
warning: the frame size of 1060 bytes is larger than 1024 bytes
[-Wframe-larger-than=]
This was caused by having buffer as an automatic variable. This commit
moves it from the stack to the heap.
Signed-off-by: Konrad Zapalowicz <bergo.torino@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/staging/dgnc/dgnc_tty.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index 4135cb0ed9f5..cd7a6dbdddb8 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -481,13 +481,18 @@ void dgnc_sniff_nowait_nolock(struct channel_t *ch, uchar *text, uchar *buf, int
int nbuf;
int i;
int tmpbuflen;
- char tmpbuf[TMPBUFLEN];
- char *p = tmpbuf;
+ char *tmpbuf;
+ char *p;
int too_much_data;
+ tmpbuf = kzalloc(TMPBUFLEN, GFP_KERNEL);
+ if (!tmpbuf)
+ return;
+ p = tmpbuf;
+
/* Leave if sniff not open */
if (!(ch->ch_sniff_flags & SNIFF_OPEN))
- return;
+ goto exit;
do_gettimeofday(&tv);
@@ -534,7 +539,7 @@ void dgnc_sniff_nowait_nolock(struct channel_t *ch, uchar *text, uchar *buf, int
* function was probably called by the interrupt/timer routines!
*/
if (n == 0)
- return;
+ goto exit;
/*
* Copy as much data as will fit.
@@ -579,6 +584,9 @@ void dgnc_sniff_nowait_nolock(struct channel_t *ch, uchar *text, uchar *buf, int
}
} while (too_much_data);
+
+exit:
+ kfree(tmpbuf);
}
--
2.9.0