patch-2_6_7-vs1_9_1_12

[linux-2.6.git] / drivers / ieee1394 / video1394.c

diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c
index a9b92c1..7a757fc 100644 (file)
--- a/drivers/ieee1394/video1394.c
+++ b/drivers/ieee1394/video1394.c
@@ -864,6 +864,7 @@ static int video1394_ioctl(struct inode *inode, struct file *file,
                        return -EFAULT;
 
                d = find_ctx(&ctx->context_list, OHCI_ISO_RECEIVE, v.channel);
+               if (d == NULL) return -EFAULT;
 
                if ((v.buffer<0) || (v.buffer>d->num_desc)) {
                        PRINT(KERN_ERR, ohci->host->id,
@@ -926,6 +927,7 @@ static int video1394_ioctl(struct inode *inode, struct file *file,
                        return -EFAULT;
 
                d = find_ctx(&ctx->context_list, OHCI_ISO_RECEIVE, v.channel);
+               if (d == NULL) return -EFAULT;
 
                if ((v.buffer<0) || (v.buffer>d->num_desc)) {
                        PRINT(KERN_ERR, ohci->host->id,
@@ -1009,6 +1011,7 @@ static int video1394_ioctl(struct inode *inode, struct file *file,
                        return -EFAULT;
 
                d = find_ctx(&ctx->context_list, OHCI_ISO_TRANSMIT, v.channel);
+               if (d == NULL) return -EFAULT;
 
                if ((v.buffer<0) || (v.buffer>d->num_desc)) {
                        PRINT(KERN_ERR, ohci->host->id,
@@ -1112,6 +1115,7 @@ static int video1394_ioctl(struct inode *inode, struct file *file,
                        return -EFAULT;
 
                d = find_ctx(&ctx->context_list, OHCI_ISO_TRANSMIT, v.channel);
+               if (d == NULL) return -EFAULT;
 
                if ((v.buffer<0) || (v.buffer>d->num_desc)) {
                        PRINT(KERN_ERR, ohci->host->id,