From: Eli Billauer Date: Thu, 4 Sep 2014 14:47:52 +0000 (+0300) Subject: staging: xillybus: Fix comments X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=21c3184c5e88ab0d1cdfed69dde877a30fb19a89;p=linux-beck.git staging: xillybus: Fix comments Trivial comments removed, and one comment clarified Suggested-by: Dan Carpenter Signed-off-by: Eli Billauer Reviewed-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/xillybus/xillybus_core.c b/drivers/staging/xillybus/xillybus_core.c index 0001d1892d44..04c60c64fc89 100644 --- a/drivers/staging/xillybus/xillybus_core.c +++ b/drivers/staging/xillybus/xillybus_core.c @@ -402,7 +402,7 @@ static int xilly_get_dma_buffers(struct xilly_endpoint *ep, s->left_of_salami -= bytebufsize; s->salami += bytebufsize; } - return 0; /* Success */ + return 0; } static int xilly_setupchannels(struct xilly_endpoint *ep, @@ -668,7 +668,7 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint) return -ENODEV; } - return 0; /* Success */ + return 0; } static ssize_t xillybus_read(struct file *filp, char __user *userbuf, @@ -977,10 +977,11 @@ desperate: } /* - * Formally speaking, we should block for data at this point. - * But to keep the code cleaner, we'll just finish the loop, - * make the unlikely check for data, and then block at the - * usual place. + * Reaching here means that we *do* have data in the buffer, + * but the "partial" flag disallows returning less than + * required. And we don't have as much. So loop again, + * which is likely to end up blocking indefinitely until + * enough data has arrived. */ } @@ -1947,7 +1948,7 @@ static int xilly_quiesce(struct xilly_endpoint *endpoint) "Failed to quiesce the device on exit.\n"); return -ENODEV; } - return 0; /* Success */ + return 0; } int xillybus_endpoint_discovery(struct xilly_endpoint *endpoint)