[commit] r1228 - trunk

[repository service]

Author: hailfinger
Date: Wed Nov 10 04:10:41 2010
New Revision: 1228
URL: http://flashrom.org/trac/flashrom/changeset/1228

Log:
Retry short reads in ft2232_spi.
It is possible that ftdi_read_data() returns less data
than requested. Catch this case and retry reading the rest
of the buffer.

Signed-off-by: Alex Badea 
Acked-by: Carl-Daniel Hailfinger

Modified:
   trunk/ft2232_spi.c

Modified: trunk/ft2232_spi.c
==============================================================================
--- trunk/ft2232_spi.c	Wed Nov 10 00:30:43 2010	(r1227)
+++ trunk/ft2232_spi.c	Wed Nov 10 04:10:41 2010	(r1228)
@@ -108,11 +108,16 @@
    	   int size)
 {
    int r;
-	r = ftdi_read_data(ftdic, (unsigned char *) buf, size);
-	if (r < 0) {
-		msg_perr("ftdi_read_data: %d, %s\n", r,
-				ftdi_get_error_string(ftdic));
-		return 1;
+
+	while (size > 0) {
+		r = ftdi_read_data(ftdic, (unsigned char *) buf, size);
+		if (r < 0) {
+			msg_perr("ftdi_read_data: %d, %s\n", r,
+					ftdi_get_error_string(ftdic));
+			return 1;
+		}
+		buf += r;
+		size -= r;
    }
    return 0;
 }