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authorAlex Dewar <alex.dewar@gmx.co.uk>2020-03-27 20:36:25 +0100
committerRichard Weinberger <richard@nod.at>2020-03-29 23:56:47 +0200
commit4a7c46247f9c620c0390a15cb00b6ef9576b9c23 (patch)
tree3149e8bd168c3830892c59aeae4022d5ae7adcf0 /arch/um
parentum: vector: Avoid NULL ptr deference if transport is unset (diff)
downloadlinux-4a7c46247f9c620c0390a15cb00b6ef9576b9c23.tar.xz
linux-4a7c46247f9c620c0390a15cb00b6ef9576b9c23.zip
um: Remove some unnecessary NULL checks in vector_user.c
kfree() already checks for null pointers, so additional checking is unnecessary. Signed-off-by: Alex Dewar <alex.dewar@gmx.co.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/drivers/vector_user.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/arch/um/drivers/vector_user.c b/arch/um/drivers/vector_user.c
index ddcd917be0af..aa28e9eecb7b 100644
--- a/arch/um/drivers/vector_user.c
+++ b/arch/um/drivers/vector_user.c
@@ -221,8 +221,7 @@ static struct vector_fds *user_init_tap_fds(struct arglist *ifspec)
return result;
tap_cleanup:
printk(UM_KERN_ERR "user_init_tap: init failed, error %d", fd);
- if (result != NULL)
- kfree(result);
+ kfree(result);
return NULL;
}
@@ -266,8 +265,7 @@ static struct vector_fds *user_init_hybrid_fds(struct arglist *ifspec)
return result;
hybrid_cleanup:
printk(UM_KERN_ERR "user_init_hybrid: init failed");
- if (result != NULL)
- kfree(result);
+ kfree(result);
return NULL;
}
@@ -344,10 +342,8 @@ static struct vector_fds *user_init_unix_fds(struct arglist *ifspec, int id)
unix_cleanup:
if (fd >= 0)
os_close_file(fd);
- if (remote_addr != NULL)
- kfree(remote_addr);
- if (result != NULL)
- kfree(result);
+ kfree(remote_addr);
+ kfree(result);
return NULL;
}
@@ -382,8 +378,7 @@ static struct vector_fds *user_init_raw_fds(struct arglist *ifspec)
return result;
raw_cleanup:
printk(UM_KERN_ERR "user_init_raw: init failed, error %d", err);
- if (result != NULL)
- kfree(result);
+ kfree(result);
return NULL;
}