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Re: [Qemu-devel] [PATCH] s390-ccw: print carriage return with new lines


From: Farhan Ali
Subject: Re: [Qemu-devel] [PATCH] s390-ccw: print carriage return with new lines
Date: Fri, 20 Oct 2017 09:48:22 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0



On 10/20/2017 07:02 AM, Christian Borntraeger wrote:
--- a/pc-bios/s390-ccw/sclp.c
+++ b/pc-bios/s390-ccw/sclp.c
@@ -83,7 +83,7 @@ long write(int fd, const void *str, size_t len)
         return -EIO;
     }

-    for (p = str; *p; ++p) {
+    for (p = str; len ; ++p, len--) {
         if (data_len > SCCB_DATA_LEN - 1) {
             return -EFBIG;
         }



The write function returns len, wouldn't this change make write return 0?




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