Update of /cvsroot/alsa/alsa-kernel/pci
In directory sc8-pr-cvs1:/tmp/cvs-serv27795
Modified Files:
es1938.c
Log Message:
memcpy -> copy_from_user in capture callback
Index: es1938.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/pci/es1938.c,v
retrieving revision 1.22
retrieving revision 1.23
diff -u -r1.22 -r1.23
--- es1938.c 31 Jan 2003 15:20:19 -0000 1.22
+++ es1938.c 24 Mar 2003 09:01:45 -0000 1.23
@@ -829,11 +829,14 @@
pos <<= chip->dma1_shift;
count <<= chip->dma1_shift;
snd_assert(pos + count <= chip->dma1_size, return -EINVAL);
- if (pos + count < chip->dma1_size)
- memcpy(dst, runtime->dma_area + pos + 1, count);
- else {
- memcpy(dst, runtime->dma_area + pos + 1, count - 1);
- ((unsigned char *)dst)[count - 1] = runtime->dma_area[0];
+ if (pos + count < chip->dma1_size) {
+ if (copy_to_user(dst, runtime->dma_area + pos + 1, count))
+ return -EFAULT;
+ } else {
+ if (copy_to_user(dst, runtime->dma_area + pos + 1, count - 1))
+ return -EFAULT;
+ if (put_user(runtime->dma_area[0], ((unsigned char *)dst) + count - 1))
+ return -EFAULT;
}
return 0;
}
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