This is a note to let you know that I've just added the patch titled
Staging: fbtft: fix memory leak in fbtft_framebuffer_alloc
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 5bdea6060618cfcf1459dca137e89aee038ac8b9 Mon Sep 17 00:00:00 2001
From: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
Date: Sun, 29 Sep 2019 22:09:45 -0500
Subject: Staging: fbtft: fix memory leak in fbtft_framebuffer_alloc
In fbtft_framebuffer_alloc the error handling path should take care of
releasing frame buffer after it is allocated via framebuffer_alloc, too.
Therefore, in two failure cases the goto destination is changed to
address this issue.
Fixes: c296d5f9957c ("staging: fbtft: core support")
Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
Reviewed-by: Dan Carpenter <dan.carpenter@xxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20190930030949.28615-1-navid.emamdoost@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/fbtft/fbtft-core.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index cf5700a2ea66..a0a67aa517f0 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -714,7 +714,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
if (par->gamma.curves && gamma) {
if (fbtft_gamma_parse_str(par, par->gamma.curves, gamma,
strlen(gamma)))
- goto alloc_fail;
+ goto release_framebuf;
}
/* Transmit buffer */
@@ -731,7 +731,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
if (txbuflen > 0) {
txbuf = devm_kzalloc(par->info->device, txbuflen, GFP_KERNEL);
if (!txbuf)
- goto alloc_fail;
+ goto release_framebuf;
par->txbuf.buf = txbuf;
par->txbuf.len = txbuflen;
}
@@ -753,6 +753,9 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
return info;
+release_framebuf:
+ framebuffer_release(info);
+
alloc_fail:
vfree(vmem);
--
2.23.0
