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[MIPS] 0 -> NULL

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When comparing a pointer, it's clearer to compare it to NULL than to 0.

Here is an excerpt of the semantic patch:

@@
expression *E;
@@

  E ==
- 0
+ NULL

@@
expression *E;
@@

  E !=
- 0
+ NULL

Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: ralf@linux-mips.org
Cc: linux-mips@linux-mips.org
Cc: akpm@linux-foundation.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Yoann Padioleau 2007-07-27 11:45:00 +02:00 committed by Ralf Baechle
parent 72db43be8b
commit 7e5829b56b
2 changed files with 7 additions and 7 deletions
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2
arch/mips/pci/ops-emma2rh.c
View File

@ -45,7 +45,7 @@ static int check_args(struct pci_bus *bus, u32 devfn, u32 * bus_num)
/* check if the bus is top-level */
if (bus->parent != NULL) {
*bus_num = bus->number;
db_assert(bus_num != 0);
db_assert(bus_num != NULL);
} else
*bus_num = 0;

12
arch/mips/pci/ops-pnx8550.c
View File

@ -117,7 +117,7 @@ read_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 * val)
unsigned int data = 0;
int err;
if (bus == 0)
if (bus == NULL)
return -1;
err = config_access(PCI_CMD_CONFIG_READ, bus, devfn, where, ~(1 << (where & 3)), &data);
@ -145,7 +145,7 @@ read_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 * val)
unsigned int data = 0;
int err;
if (bus == 0)
if (bus == NULL)
return -1;
if (where & 0x01)
@ -168,7 +168,7 @@ static int
read_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 * val)
{
int err;
if (bus == 0)
if (bus == NULL)
return -1;
if (where & 0x03)
@ -185,7 +185,7 @@ write_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 val)
unsigned int data = (unsigned int)val;
int err;
if (bus == 0)
if (bus == NULL)
return -1;
switch (where & 0x03) {
@ -213,7 +213,7 @@ write_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 val)
unsigned int data = (unsigned int)val;
int err;
if (bus == 0)
if (bus == NULL)
return -1;
if (where & 0x01)
@ -235,7 +235,7 @@ static int
write_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 val)
{
int err;
if (bus == 0)
if (bus == NULL)
return -1;
if (where & 0x03)