fbdev: ssd1307fb: fix potential page leak in ssd1307fb_probe()
The page allocated for vmem using __get_free_pages() is not freed on the
error paths after it. Fix that by adding a corresponding __free_pages()
call to the error path.
Fixes: facd94bc458a ("fbdev: ssd1307fb: Allocate page aligned video memory.")
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Helge Deller <deller@gmx.de>
diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index aa6cc0a..83dd31f 100644
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -680,7 +680,7 @@ static int ssd1307fb_probe(struct i2c_client *client)
if (!ssd1307fb_defio) {
dev_err(dev, "Couldn't allocate deferred io.\n");
ret = -ENOMEM;
- goto fb_alloc_error;
+ goto fb_defio_error;
}
ssd1307fb_defio->delay = HZ / refreshrate;
@@ -757,6 +757,8 @@ static int ssd1307fb_probe(struct i2c_client *client)
regulator_disable(par->vbat_reg);
reset_oled_error:
fb_deferred_io_cleanup(info);
+fb_defio_error:
+ __free_pages(vmem, get_order(vmem_size));
fb_alloc_error:
framebuffer_release(info);
return ret;
