If an error occurs after a successful uvesafb_init_mtrr() call, it must be undone by a corresponding arch_phys_wc_del() call, as already done in the remove function.
This has been added in the remove function in commit 63e28a7a5ffc ("uvesafb: Clean up MTRR code") Fixes: 8bdb3a2d7df4 ("uvesafb: the driver core") Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr> --- Unsure about the Fixes tag, maybe it is 63e28a7a5ffc Change in v2: - add arch_phys_wc_del() at the right place in the error handling path v1 (a long time ago!): https://lore.kernel.org/all/dd2a4806d3a570ab84947806f38a494454fd0245.1622994310.git.christophe.jail...@wanadoo.fr/ --- drivers/video/fbdev/uvesafb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c index 00d789b6c0fa..0e3cabbec4b4 100644 --- a/drivers/video/fbdev/uvesafb.c +++ b/drivers/video/fbdev/uvesafb.c @@ -1758,6 +1758,7 @@ static int uvesafb_probe(struct platform_device *dev) out_unmap: iounmap(info->screen_base); out_mem: + arch_phys_wc_del(par->mtrr_handle); release_mem_region(info->fix.smem_start, info->fix.smem_len); out_reg: release_region(0x3c0, 32); -- 2.34.1