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Subject[PATCH 4/7] agp/ati: Return error from ati_create_page_map()
Date
Fix the compiler warning

drivers/char/agp/ati-agp.c: In function 'ati_create_page_map':
drivers/char/agp/ati-agp.c:58:16: warning: variable 'err' set but not used [-Wunused-but-set-variable]
58 | int i, err = 0;

by returing the error to the caller.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/char/agp/ati-agp.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/char/agp/ati-agp.c b/drivers/char/agp/ati-agp.c
index 857b37141a07..785cc1ecf4e0 100644
--- a/drivers/char/agp/ati-agp.c
+++ b/drivers/char/agp/ati-agp.c
@@ -55,7 +55,7 @@ static struct _ati_generic_private {

static int ati_create_page_map(struct ati_page_map *page_map)
{
- int i, err = 0;
+ int i, err;

page_map->real = (unsigned long *) __get_free_page(GFP_KERNEL);
if (page_map->real == NULL)
@@ -63,6 +63,8 @@ static int ati_create_page_map(struct ati_page_map *page_map)

set_memory_uc((unsigned long)page_map->real, 1);
err = map_page_into_agp(virt_to_page(page_map->real));
+ if (err)
+ goto err_free_page;
page_map->remapped = page_map->real;

for (i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++) {
@@ -71,6 +73,10 @@ static int ati_create_page_map(struct ati_page_map *page_map)
}

return 0;
+
+err_free_page:
+ free_page((unsigned long)page_map->real);
+ return err;
}


--
2.33.1
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