Commit 89c6c139 authored by Mike Frysinger's avatar Mike Frysinger Committed by Bryan Wu
Browse files

Blackfin arch: fix off-by-one errors on end of memory range 



Signed-off-by: default avatarMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
parent 09c1db92

arch/blackfin/kernel/kgdb.c

+4 −4
Original line number Diff line number Diff line
@@ -643,7 +643,7 @@ int kgdb_ebin2mem(char *buf, char *mem, int count) 
			return EFAULT;

		}

	} else if ((cpu == 0 && (unsigned int)mem >= L1_CODE_START &&

		(unsigned int)(mem + count) < L1_CODE_START + L1_CODE_LENGTH)

		(unsigned int)(mem + count) <= L1_CODE_START + L1_CODE_LENGTH)

#ifdef CONFIG_SMP

		|| (cpu == 1 && (unsigned int)mem >= COREB_L1_CODE_START &&

		(unsigned int)(mem + count) <=
@@ -758,11 +758,11 @@ int kgdb_arch_set_breakpoint(unsigned long addr, char *saved_instr) 


	if ((cpu == 0 && (unsigned int)addr >= L1_CODE_START

		&& (unsigned int)(addr + BREAK_INSTR_SIZE)

		< L1_CODE_START + L1_CODE_LENGTH)

		<= L1_CODE_START + L1_CODE_LENGTH)

#ifdef CONFIG_SMP

		|| (cpu == 1 && (unsigned int)addr >= COREB_L1_CODE_START

		&& (unsigned int)(addr + BREAK_INSTR_SIZE)

		< COREB_L1_CODE_START + L1_CODE_LENGTH)

		<= COREB_L1_CODE_START + L1_CODE_LENGTH)

#endif

		) {

		/* access L1 instruction SRAM */
@@ -789,7 +789,7 @@ int kgdb_arch_set_breakpoint(unsigned long addr, char *saved_instr) 
int kgdb_arch_remove_breakpoint(unsigned long addr, char *bundle)

{

	if ((unsigned int)addr >= L1_CODE_START &&

		(unsigned int)(addr + BREAK_INSTR_SIZE) <

		(unsigned int)(addr + BREAK_INSTR_SIZE) <=

			L1_CODE_START + L1_CODE_LENGTH) {

		/* access L1 instruction SRAM */

		if (dma_memcpy((void *)addr, bundle, BREAK_INSTR_SIZE) == NULL)