fbdev/broadsheetfb: fix memory leak

static code analysis from cppcheck reports:

[drivers/video/fbdev/broadsheetfb.c:673]:
  (error) Memory leak: sector_buffer

sector_buffer is not being kfree'd on each call to
broadsheet_spiflash_rewrite_sector(), so free it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/drivers/video/fbdev/broadsheetfb.c b/drivers/video/fbdev/broadsheetfb.c
index 1c29bd1..0e5fde1 100644 (file)
--- a/drivers/video/fbdev/broadsheetfb.c
+++ b/drivers/video/fbdev/broadsheetfb.c
@@ -636,7 +636,7 @@ static int broadsheet_spiflash_rewrite_sector(struct broadsheetfb_par *par,
                err = broadsheet_spiflash_read_range(par, start_sector_addr,
                                                data_start_addr, sector_buffer);
                if (err)
-                       return err;
+                       goto out;
        }
 
        /* now we copy our data into the right place in the sector buffer */
@@ -657,7 +657,7 @@ static int broadsheet_spiflash_rewrite_sector(struct broadsheetfb_par *par,
                err = broadsheet_spiflash_read_range(par, tail_start_addr,
                        tail_len, sector_buffer + tail_start_addr);
                if (err)
-                       return err;
+                       goto out;
        }
 
        /* if we got here we have the full sector that we want to rewrite. */
@@ -665,11 +665,13 @@ static int broadsheet_spiflash_rewrite_sector(struct broadsheetfb_par *par,
        /* first erase the sector */
        err = broadsheet_spiflash_erase_sector(par, start_sector_addr);
        if (err)
-               return err;
+               goto out;
 
        /* now write it */
        err = broadsheet_spiflash_write_sector(par, start_sector_addr,
                                        sector_buffer, sector_size);
+out:
+       kfree(sector_buffer);
        return err;
 }