2.5.62: /proc/ide/ali returns incomplete data [2/17]
PATCH 1/1 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.
drivers/ide/pci/alim15x3.c +6 -1
@@ -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) */