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authorJulia Lawall <Julia.Lawall@lip6.fr>2012-04-22 11:57:40 +0200
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-05-07 06:41:56 -0400
commita7a97c639478941102e33dcdd0ff6d4b70539533 (patch)
tree92fa808bf42e87630922fa1e5befb80660b4f1f7
parent7eb7ce4d2e8991aff4ecb71a81949a907ca755ac (diff)
drivers/video/xen-fbfront.c: add missing cleanup code
The operations in the subsequent error-handling code appear to be also useful here. Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> [v1: Collapse some of the error handling functions] [v2: Fix compile warning] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
-rw-r--r--drivers/video/xen-fbfront.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c
index cb4529c40d74..b7f5173ff9e9 100644
--- a/drivers/video/xen-fbfront.c
+++ b/drivers/video/xen-fbfront.c
@@ -365,7 +365,7 @@ static int __devinit xenfb_probe(struct xenbus_device *dev,
struct fb_info *fb_info;
int fb_size;
int val;
- int ret;
+ int ret = 0;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (info == NULL) {
@@ -458,26 +458,31 @@ static int __devinit xenfb_probe(struct xenbus_device *dev,
xenfb_init_shared_page(info, fb_info);
ret = xenfb_connect_backend(dev, info);
- if (ret < 0)
- goto error;
+ if (ret < 0) {
+ xenbus_dev_fatal(dev, ret, "xenfb_connect_backend");
+ goto error_fb;
+ }
ret = register_framebuffer(fb_info);
if (ret) {
- fb_deferred_io_cleanup(fb_info);
- fb_dealloc_cmap(&fb_info->cmap);
- framebuffer_release(fb_info);
xenbus_dev_fatal(dev, ret, "register_framebuffer");
- goto error;
+ goto error_fb;
}
info->fb_info = fb_info;
xenfb_make_preferred_console();
return 0;
- error_nomem:
- ret = -ENOMEM;
- xenbus_dev_fatal(dev, ret, "allocating device memory");
- error:
+error_fb:
+ fb_deferred_io_cleanup(fb_info);
+ fb_dealloc_cmap(&fb_info->cmap);
+ framebuffer_release(fb_info);
+error_nomem:
+ if (!ret) {
+ ret = -ENOMEM;
+ xenbus_dev_fatal(dev, ret, "allocating device memory");
+ }
+error:
xenfb_remove(dev);
return ret;
}