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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>
This commit is contained in:
Julia Lawall 2012-04-22 11:57:40 +02:00 committed by Konrad Rzeszutek Wilk
parent 7eb7ce4d2e
commit a7a97c6394
1 changed files with 16 additions and 11 deletions
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27
drivers/video/xen-fbfront.c
View File

@ -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;
}