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Subject[PATCH] 2.5.62: /proc/ide/ali returns incomplete data [2/17]
This patch fixes the incomplete data return problem of /proc/ide/ali.
When the number of consecutive read bytes are smaller than the total
data in ali_get_info(), the second read() returns 0.

--- linux-2.5.62-vanilla/drivers/ide/pci/alim15x3.c Tue Dec 24 07:20:01 2002
+++ linux-2.5.62/drivers/ide/pci/alim15x3.c Sat Feb 22 23:17:15 2003
@@ -96,6 +96,7 @@
{
u32 bibma;
u8 reg53h, reg5xh, reg5yh, reg5xh1, reg5yh1, c0, c1, rev, tmp;
+ int len;
char *q, *p = buffer;

/* fetch rev. */
@@ -270,7 +271,11 @@
udmaT[reg5yh & 0x07],
udmaT[(reg5yh & 0x70) >> 4] );

- return p-buffer; /* => must be less than 4k! */
+ /* p - buffer must be less than 4k! */
+ len = (p - buffer) - offset;
+ *addr = buffer + offset;
+
+ return len > count ? count : len;
}
#endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS) */
-
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