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staging: cxt1e1: pmcc4_drv.c: Use NULL instead of 0 

Pointers should be assigned NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sachin Kamat 2013-09-27 09:36:35 +05:30 committed by Greg Kroah-Hartman
parent c11afaae49
commit 360d26e420
1 changed files with 8 additions and 8 deletions
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16
drivers/staging/cxt1e1/pmcc4_drv.c
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@ -70,7 +70,7 @@ extern void *memset (void *s, int c, size_t n);
#endif
int drvr_state = SBE_DRVR_INIT;
ci_t *c4_list = 0;
ci_t *c4_list = NULL;
ci_t *CI; /* dummy pointer to board ZEROE's data -
* DEBUG USAGE */
@ -119,7 +119,7 @@ c4_find_chan (int channum)
return ch;
}
}
return 0;
return NULL;
}
@ -145,7 +145,7 @@ c4_new (void *hi)
pr_warning("failed CI malloc, size %u.\n",
(unsigned int) sizeof (ci_t));
if (CI == 0)
if (!CI)
CI = ci; /* DEBUG, only board 0 usage */
return ci;
}
@ -831,7 +831,7 @@ c4_musycc_rw (ci_t *ci, struct c4_musycc_param *mcp)
{
mpi_t *pi;
volatile u_int32_t *dph; /* hardware implemented register */
u_int32_t *dpr = 0; /* RAM image of registers for group command
u_int32_t *dpr = NULL; /* RAM image of registers for group command
* usage */
int offset = mcp->offset % 0x800; /* group relative address
* offset, mcp->portnum is
@ -1060,7 +1060,7 @@ c4_new_chan (ci_t *ci, int portnum, int channum, void *user)
}
/* save off interface assignments which bound a board */
if (ci->first_if == 0) /* first channel registered is assumed to
if (!ci->first_if) /* first channel registered is assumed to
* be the lowest channel */
{
ci->first_if = ci->last_if = user;
@ -1392,7 +1392,7 @@ c4_chan_up (ci_t *ci, int channum)
md->status = HOST_TX_OWNED; /* Host owns TX descriptor ** CODING
* NOTE: HOST_TX_OWNED = 0 so no need to
* byteSwap */
md->mem_token = 0;
md->mem_token = NULL;
md->data = 0;
if (i == (txnum - 1))
{
@ -1448,10 +1448,10 @@ errfree:
OS_mem_token_free (ch->mdr[i].mem_token);
}
OS_kfree (ch->mdt);
ch->mdt = 0;
ch->mdt = NULL;
ch->txd_num = 0;
OS_kfree (ch->mdr);
ch->mdr = 0;
ch->mdr = NULL;
ch->rxd_num = 0;
ch->state = DOWN;
return ENOBUFS;