3.18-stable review patch. If anyone has any objections, please let me know.
------------------ From: Tomi Valkeinen <tomi.valkei...@ti.com> [ Upstream commit 6a0f0c55619f0b82a677cab72e77c3444a5eee58 ] tiler_reserve_2d allocates memory but does not check if it got the memory. Add the check and return ENOMEM on failure. Signed-off-by: Tomi Valkeinen <tomi.valkei...@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180329104038.29154-2-tomi.valkei...@ti.com Reviewed-by: Emil Velikov <emil.veli...@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com> Signed-off-by: Sean Paul <seanp...@chromium.org> Signed-off-by: Sasha Levin <alexander.le...@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c +++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c @@ -356,11 +356,15 @@ int tiler_unpin(struct tiler_block *bloc struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w, uint16_t h, uint16_t align) { - struct tiler_block *block = kzalloc(sizeof(*block), GFP_KERNEL); + struct tiler_block *block; u32 min_align = 128; int ret; unsigned long flags; + block = kzalloc(sizeof(*block), GFP_KERNEL); + if (!block) + return ERR_PTR(-ENOMEM); + BUG_ON(!validfmt(fmt)); /* convert width/height to slots */
