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authorJulia Lawall <julia@diku.dk>2009-07-19 17:29:57 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-09-23 06:46:29 -0700
commit64aebe73152ab3a9f5f426baaf65db632bd72c13 (patch)
treeb96e307aed23b98bd83c1096da8619e0d042849d /drivers/usb/storage
parent981e60f037631ca725a9790e7b3512de4a60bba8 (diff)
USB: storage: Drop an unneeded a NULL test
In each case, the NULL test is not necessary because the function is static and at the only places where it is called, the us argument has already been dereferenced. The semantic patch that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T; expression E,E1; identifier i,fld; statement S; @@ - T i = E->fld; + T i; ... when != E=E1 when != i if (E == NULL||...) S + i = E->fld; // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/storage')
-rw-r--r--drivers/usb/storage/datafab.c4
-rw-r--r--drivers/usb/storage/jumpshot.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c
index 2b6e565262c..ded836b02d7 100644
--- a/drivers/usb/storage/datafab.c
+++ b/drivers/usb/storage/datafab.c
@@ -334,7 +334,7 @@ static int datafab_determine_lun(struct us_data *us,
unsigned char *buf;
int count = 0, rc;
- if (!us || !info)
+ if (!info)
return USB_STOR_TRANSPORT_ERROR;
memcpy(command, scommand, 8);
@@ -399,7 +399,7 @@ static int datafab_id_device(struct us_data *us,
unsigned char *reply;
int rc;
- if (!us || !info)
+ if (!info)
return USB_STOR_TRANSPORT_ERROR;
if (info->lun == -1) {
diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c
index 1c69420e3ac..6168596c5ac 100644
--- a/drivers/usb/storage/jumpshot.c
+++ b/drivers/usb/storage/jumpshot.c
@@ -335,7 +335,7 @@ static int jumpshot_id_device(struct us_data *us,
unsigned char *reply;
int rc;
- if (!us || !info)
+ if (!info)
return USB_STOR_TRANSPORT_ERROR;
command[0] = 0xE0;