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NULL pointer cleanup

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This commit is contained in:
Ralph Metzler 2015-12-13 22:26:35 +01:00 committed by mvoelkel
parent 781686c87d
commit 197897731e
1 changed files with 6 additions and 6 deletions
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12
ddbridge/ddbridge-core.c
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@ -213,7 +213,7 @@ static void dma_free(struct pci_dev *pdev, struct ddb_dma *dma, int dir)
dir ? DMA_TO_DEVICE : dir ? DMA_TO_DEVICE :
DMA_FROM_DEVICE); DMA_FROM_DEVICE);
kfree(dma->vbuf[i]); kfree(dma->vbuf[i]);
dma->vbuf[i] = 0; dma->vbuf[i] = NULL;
} }
} }
} }
@ -543,7 +543,7 @@ static u32 ddb_dma_free(struct ddb_dma *dma)
#endif #endif
static ssize_t ddb_output_write(struct ddb_output *output, static ssize_t ddb_output_write(struct ddb_output *output,
const u8 *buf, size_t count) const __user u8 *buf, size_t count)
{ {
struct ddb *dev = output->port->dev; struct ddb *dev = output->port->dev;
u32 idx, off, stat = output->dma->stat; u32 idx, off, stat = output->dma->stat;
@ -691,7 +691,7 @@ static u32 ddb_input_avail(struct ddb_input *input)
return 0; return 0;
} }
static size_t ddb_input_read(struct ddb_input *input, u8 *buf, size_t count) static size_t ddb_input_read(struct ddb_input *input, __user u8 *buf, size_t count)
{ {
struct ddb *dev = input->port->dev; struct ddb *dev = input->port->dev;
u32 left = count; u32 left = count;
@ -762,7 +762,7 @@ static ssize_t ts_write(struct file *file, const char *buf,
return (left == count) ? -EAGAIN : (count - left); return (left == count) ? -EAGAIN : (count - left);
} }
static ssize_t ts_read(struct file *file, char *buf, static ssize_t ts_read(struct file *file, __user char *buf,
size_t count, loff_t *ppos) size_t count, loff_t *ppos)
{ {
struct dvb_device *dvbdev = file->private_data; struct dvb_device *dvbdev = file->private_data;
@ -1884,7 +1884,7 @@ static int dvb_input_attach(struct ddb_input *input)
return ret; return ret;
dvb->attached = 0x21; dvb->attached = 0x21;
} }
dvb->fe = dvb->fe2 = 0; dvb->fe = dvb->fe2 = NULL;
switch (port->type) { switch (port->type) {
case DDB_TUNER_MXL5XX: case DDB_TUNER_MXL5XX:
if (fe_attach_mxl5xx(input) < 0) if (fe_attach_mxl5xx(input) < 0)
@ -2753,7 +2753,7 @@ static void ddb_ports_detach(struct ddb *dev)
if (port->en) { if (port->en) {
dvb_ca_en50221_release(port->en); dvb_ca_en50221_release(port->en);
kfree(port->en); kfree(port->en);
port->en = 0; port->en = NULL;
} }
break; break;
case DDB_PORT_MOD: case DDB_PORT_MOD: