From: Navid Emamdoost navid.emamdoost@gmail.com
[ Upstream commit 5bdea6060618cfcf1459dca137e89aee038ac8b9 ]
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@gmail.com Reviewed-by: Dan Carpenter dan.carpenter@gmail.com Cc: stable stable@vger.kernel.org Link: https://lore.kernel.org/r/20190930030949.28615-1-navid.emamdoost@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 6d0363deba619..0cbcbad8f0742 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -828,7 +828,7 @@ 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 */ @@ -845,7 +845,7 @@ 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; } @@ -881,6 +881,9 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
return info;
+release_framebuf: + framebuffer_release(info); + alloc_fail: vfree(vmem);